GPT-5.3 Chat (latest)
GPT-5.3 Chat (latest) by OpenAI — specifications, pricing and published benchmark scores, with community links.
| Organization | OpenAI |
|---|---|
| Released | 2026-03 |
| License | Proprietary |
| Open weights | No |
| Context window | 128,000 tokens |
| Modality | text, image |
| Input price | $1.75 / 1M |
| Output price | $14 / 1M |
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